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Re: Theropod "migrations"

In a message dated 4/24/99 10:45:09 PM EST, sarima@ix.netcom.com writes:

<< Are there ceratopsids in the North slope fauna?
 If not, I suggest climatic filtering - the ceratopsids couldn't handle the
 Long Night. >>

There is most certainly a (new?) species of Pachyrhinosaurus among the North 
Slope dinosaurs..